Throw open the windows every morning for half an hour!! That is true air 'freshening', everything else is pong masking, unless it is a genuine neutraliser!
Instead of shake and vac type things, use bicarbonate of soda, which is nature's own odour eater.
A few drops of essential oil somewhere where it gets warmed - in a sunny window, on a radiator - Lemon is invigorating, Lavender great in a bedroom as it is very soothing, Rose improves mood, Jasmine is sensual (!)